Summary
Impact: Remote Code Execution. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.
Details
How could an attacker exploit this vulnerability?
To exploit this vulnerability, an authenticated attacker would need to send a specially crafted RPC call to an RPC host. This could result in remote code execution on the server side with the same permissions as the RPC service.
Security updates
10.0.17763.4252 — https://support.microsoft.com/help/5025229
10.0.20348.1668 — https://support.microsoft.com/help/5025230
10.0.19042.2846 — https://support.microsoft.com/help/5025221
10.0.22000.1817 — https://support.microsoft.com/help/5025224
10.0.22621.1555 — https://support.microsoft.com/help/5025239
10.0.10240.19869 — https://support.microsoft.com/help/5025234
10.0.14393.5850 — https://support.microsoft.com/help/5025228
6.0.6003.22015 — https://support.microsoft.com/help/5025271
6.0.6003.22015 — https://support.microsoft.com/help/5025273
6.1.7601.26466 — https://support.microsoft.com/help/5025279
6.1.7601.26466 — https://support.microsoft.com/help/5025277
6.2.9200.24216 — https://support.microsoft.com/help/5025287
6.2.9200.24216 — https://support.microsoft.com/help/5025272
6.3.9600.20919 — https://support.microsoft.com/help/5025285
6.3.9600.20919 — https://support.microsoft.com/help/5025288
Vulnerabilities 1
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High 8.8
Remote Procedure Call Runtime Remote Code Execution Vulnerability
Remote Procedure Call Runtime Remote Code Execution Vulnerability
Revision history
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#2
Updated FAQ information. This is an informational change only.
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#1
Information published.
References
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CVE-2023-21727 Remote Procedure Call Runtime Remote Code Execution Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21727
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Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
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Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
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Common Vulnerability Scoring System
https://www.first.org/cvss